Type-writing machine.



No. 754.964. PATENTED MAR. 22, 1904. H. BETTENDORF & J. M. BIER. TYPE WRITING MACHINE.

APPLIOATION FILED SEPT. 28, 1901. N0 MODEL.

3 SHEETSBHEET 1.

z uonms PETERS C0.PuOYO-LITHO. wasmnomn a c N0 MODEL.

PATENTED MAR. 22, 1904. H. BETTENDORF & J. M. BIER.

TYPE WRITING MACHINE. I APPLICATION FILED SEPT. 28. 1901.

3 SHEETS-SHEET 2.

No. 754,964, PATENTED MAR. 22, 1904. H. BETTENDORF & J. M. BIER.

TYPE WRITING MACHINE.

APPLIOATION FILED SEPT. 28, 1901. N0 MODEL.

3 SHBETS SHEBT 3.

Patented March @1904.

PATENT OFFICE.

HEINRICH BETTENDORF AND JULIUS MAX BIER, OF FRANKFORT-ON-THE- MAIN, GERMANY.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent N0. 754,964, dated March 22, 1904.

Application filed September 28, 1901. Serial No. 76,978. (No model.)

Zeil 53, Frankfort-on-the-Main, 'in the Kingdom of Prussia and Empire of Germany, subects of the King of Prussia, Emperor of Germany, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a full, clear, and exact description. I

This invention relates to type-writing machines; and its primary object is to provide a machine of this character comprising mechanism capable of being actuated by a down- Ward pressure upon a key and also by a pulling pressure on the operative parts to bring one or the other of two characters on a typebar into printing position with relation to the printing-cylinder.

The invention consists of the combination, with a printing-cylinder and a type-bar provided with two types, of novel mechanism for moving the type'bar to bring either of the types into printing position.

The construction of the improved mechanism will be fully described hereinafter in connection with the accompanying drawings, which form part of this specification, and its novel features will be defined in the appended claims.

In the drawings, Figure 1 is a sectional side elevation of the improvement in connection with such parts of a machine-frame as are necessary to an understanding of the invention, the type-bar being in its normal position of rest. Fig. 2 is a similar view showing the position of the parts when the upper type is in contact with the printing-cylinder. Fig. 3 is a detail sectional side elevation of a modified embodiment of the invention. Fig. 4 is a front elevation, partly in vertical section, of the modification shown in Fig. 3. Fig. 5 is a sectional side elevation of another modification, showing in full lines the type-bar in its normal position and in dotted lines the upper type in contact with the printing-cylinder; and Fig. 6 is a similar view showing the lower type in contact with the cylinder.

The reference numeral 1 designates the type-bar, provided with two projecting arms 2 and 3, each formed with a slot designated, respectively, by the numerals 4 and 5. Adjacent to the juncture of the arms 2 and 3 the bar 1 is provided with a pivot-pin 6, extending through an elongated slot 8, formed in the frame 7 of the machine.

9 designates the key-bar, extending through an elongated slot formed in the frame-plate 18 and pivotally secured at its lower end to the forward end of a lever-key 11, fulcrumed on a suitable pivoted support and having its rear end turned upward at substantially right angles, provided with a laterally-projecting pin 14, which extends into the slot 4 of the arm 2.

A connecting-rod 10, slidably supported below the frame-plate 18, is connected at its for- Ward end, by means of a slot and pin, to the key-bar 9 and formed at its rear ends with an upwardly-extending hook formed with an inclined slot 12, into which projects the pin 6 of the type-bar. The bar 9 carries at its upper end a key 17.

The operation of the machine constructed as thus described is as follows: When the key 17 is pressed down, the rear endof the keylever 11 is raised and the contact of the pin 14: with the arm 2 throws the bar 1 rearward,

carrying the lower type on the bar into print ing contact with the paper-cylinder. The movement does not affect the connecting-bar 10, owing to the play permitted by the slots 5 and 12. When it is desired to bring the upper type into printing position, the keybar-9 is pulled toward the front of the machine, thus imparting a longitudinal movement to the rod 10 and drawing the bar 1 down through the intermediacy of the pin 6 and slot 12 and the pin 13 and the slot5. The upper type is thus brought into position upon the paper-cylinder, as shown in Fig. 2.

In lieu of the mechanism above described I may employ the modification shown in Figs. 3 and 4:, comprising an oscillatory sleeve 17", mounted upon the upper end of a key-bar 9 and having a laterally-projecting finger-piece 19 and a pin 20 extending through a slot 21 in the rod 10. A downward pressure on the sleeve 17 which serves as the key, operates the key-lever 11 to bringthe lower type against the cylinder, while an oscillatory movement of the sleeve effected through the medium of the finger-piece 19 will draw the rod 10 forward to lower the type-bar and bring the upper type into printing position.

A further modification of the type-bar-operating mechanism is illustrated in Figs. 5 and 6, in which the connecting-rod 10 is dispensed with. This embodiment of the invention comprises a key 17, mounted upon a bar formed integral with a key-lever 11f, having a verti' cal arm 22, and slotted at its rear end to re ceive a securing-pin. Therkey-lever 11 is also provided with a laterally-projecting pin 23, adapted to engage an L-shaped lever 24, fulcrumed at the point 25 and having a connection 26 with the type-bar 1. The bar 1 is formed with an elongated slot 27, through which extends a pin 28. IVhen pressure is applied to the key 17 in the direction of the arrow in Fig. 5, the pin 23 of the key-lever 11 presses on the adjacent end of the lever 24, turning the latter on its pivot 25 and moving the typebar to the position shown by dotted lines in Fig. 5. If the lower type on the bar 1 is to be brought into printing position, the key-bar and key-lever 11 are pulled forward in the direction of the arrow in Fig. 6, causing the pin 23 to strike against the lever 24 and tilt it rearward. At the same time the arm 22 slips under the type-bar 1, raising the latter, so that the lower type is brought into contact with the paper-cylinder as the bar 1 is moved 7 by the turning of the lever 24.

Suitable retracting-springs are employed, as shown in the drawings, for restoring the parts to their normal positions after pressure thereon is released.

It will be apparent that a variety or modifications may be resorted to in the construction of the improved machine without departing from the invention, and we'would there fore have it understood that we reserve the right to make all such changes in form and structure as may fall within the scope of the following claims.

Having thus fully described our invention, we claim and desire to secure by Letters Patent 1. In a type-writing machine, the combination with a key, and a type-bar carrying two types,"of mechanism intermediate said typebar and key, operatively connecting the same and adapted to be operated by a downward pressure of the key to move one of said types vsasea into printing position, and independent mechanism operatively connecting the key bar and type-bar adapted to be operated by a pulling movement upon the key, to move the other type to printing position.

2. In a type-writing machine, the combination with a type-bar carrying two types, and akey-bar, of independent connections between said type-bar and key-bar for each type, adapted to be operated by independent movements of said key-bar, to bring one or the other of the types into printing position.

3. In a type-writing machine, the combination with a key-bar, and a type-bar carrying two types, of a connection between said keybar and type-bar for throwing the type-bar into contact with the printing-cylinder, and an independent connection between said key-bar and type-bar for lowering the type-bar, and throwing it into contact with said cylinder.

4. In a type-writing machine, the combination with a key-bar, and a type-bar carrying two types, and having two projecting slotted arms, and an independent connection between each of said arms and the key-bar.

5. In a type-writing machine, the combination with a key-bar, and a type-bar carrying two types, and having two oppositely-projecting arms, and akey-lever loosely connected to one of said arms, and a longitudinally-movable rod connecting the other arm to the keybar.

6. In a type-writing machine, the combination with a key-bar, and a type-bar carrying two types, and having projecting slotted arms,

or means connecting the key-bar and typebar,

whereby when the key-bar is depressed, one of said types is thrown into printing position, and when a pulling pressure is exerted upon the connecting means, the other type is presented in printing position. a

7. In a type-writing machine, the combination with a key-bar, and a type-bar carrying two types, having projecting slotted arms, and a laterally-projecting pin, a key-lever having a pin projecting into the slot of one of said arms, and a connecting-rod loosely connected at one end to the key-bar, and slotted at its opposite end to receive the pin of the type-bar.

In witness whereof we subscribe our signatures in presence of two witnesses.

HEINRICH BETTENDORF. JULIUS MAX BIER.

\Vitnesses:

HEINRICH VELTEY, CHRISTIAN SEHRING. 

